Her TWO cats, not one but TWO were lost in this giant candy house.
Louisa was cursing herself in her head for consenting a sweet mine in a place swarms with sweet junkies (pets and kids alike). Although, since when did cats like sweets? This gingerbread house wasn't sweets only then, who knows what those house-elves and everyone else were baking over there? Whatever they baked, it made her cats sneak off into this mini-castle and disappear!
Stomping her feet around the Ravenclaw kept dodging running kids, peering around corners, and chucking a piece of furniture or window to gnaw on while she grumbled to no one. "
...should've let them stay and rot in that dorm, but noooo I had to..." etc etc.